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A burner and ignition assembly, and method include a burner unit, an air intake, and a fuel supply supplying gas and including an air intake. The amount of air entering the air intake can be controlled by momentarily adjusting a choke that is movable relative to the air intake to cover a portion of

A burner and ignition assembly, and method include a burner unit, an air intake, and a fuel supply supplying gas and including an air intake. The amount of air entering the air intake can be controlled by momentarily adjusting a choke that is movable relative to the air intake to cover a portion of an opening of the air intake to reduce an amount of air entering the air intake when a cold start condition exists.

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1. A burner assembly, comprising: a burner unit;a fuel supply attached to the burner unit and including a gas valve, an air intake, and a mixing portion in which gas and air are mixed;a choke movable relative to the air intake to adjust an amount of air entering into the air intake port; andan elect

1. A burner assembly, comprising: a burner unit;a fuel supply attached to the burner unit and including a gas valve, an air intake, and a mixing portion in which gas and air are mixed;a choke movable relative to the air intake to adjust an amount of air entering into the air intake port; andan electronic controller to control the movement of the choke relative to the air intake, wherein the controlled movement includes momentarily moving said choke from a first position prior to activation by said electronic controller to a second position that reduces an amount of air entering the intake for a momentary pre-flow period when a cold start condition exists. 2. The assembly of claim 1, wherein the electronic controller determines a cold start condition exists based on at least one of sensing a temperature of the burner and sensing that power to the burner assembly has been turned on. 3. The assembly of claim 1, wherein air is drawn in the air intake by gas passing through the fuel supply. 4. The assembly of claim 3, wherein said choke comprises a collar surrounding a portion of the fuel supply. 5. The assembly of claim 1, further comprising a blower, wherein gas is drawn from the gas valve into the mixing portion by air from the intake being blown in by the blower. 6. The assembly of claim 5, wherein the air intake is an opening formed in a substantially flat surface of the blower and the choke comprises a substantially flat moveable plate that covers a substantial portion of the intake when moved into the air restricting position. 7. The assembly of claim 5, further comprising an ignition device positioned at a surface of the burner, wherein the electronic controller prevents the ignition device from activating and the gas valve from opening until after the blower has blown air for a predetermined period of time. 8. The assembly of claim 1, further comprising a flame sensor proximate a surface of the burner unit, wherein the electronic controller deactivates the choke if the flame sensor detects a flame. 9. The assembly of claim 1, wherein the burner comprises at least one porous ceramic plate. 10. A method of igniting a burner, comprising: monitoring for presence of a request for heat, wherein said request for heat is generated by a thermostat or a power on/off switch;determining if a cold start condition exists when a request for heat is present;activating a choke that moves relative to an air intake of the burner to restrict an amount of intake air entering the intake and supplying gas to the burner if a cold start condition exists, wherein the activated choke is momentarily moved from a first position prior to the choke activation to a second position to provide a substantially uniform distribution of flame at a surface of the burner after ignition;activating an ignition device to light the burner, wherein the ignition activation is delayed for a momentary pre-flow period if a cold start condition exists to provide a substantially uniform distribution of flame at a surface of the burner after ignition; anddeactivating the choke after successful ignition of the burner, wherein the deactivated choke is actively positioned to provide an efficient air-fuel mixture. 11. The method of claim 10, wherein determining if a cold start condition exists comprises sensing the temperature at the burner, and determining whether the sensed temperature meets a predetermined threshold amount. 12. The method of claim 10, wherein determining if a cold start condition exists comprises sensing whether that power to the burner has been turned on. 13. The method of claim 10, wherein activating the choke comprises moving a planar plate to cover a substantial portion of an air intake of the burner. 14. The method of claim 10, wherein activating the choke comprises moving a collar surrounding an air intake of the burner to cover over a substantial portion of the air intake. 15. The method of claim 10, further comprising supplying air to the burner with a blower for a predetermined momentary pre-flow time period, and delaying supplying the gas and activating the ignition until the pre-flow time period has expired. 16. The method of claim 15, wherein initiation of supplying the gas and activating the ignition are performed simultaneously. 17. The method of claim 10, wherein said activated choke positioning is determined by one or more of the factors in the group comprised of fuel type, burner type, desired burner temperature, heat detected at one or more burners, flame detection at one or more burners, turning the power switch on, and the passage of a predetermined period of time. 18. The method of claim 10, wherein said deactivated choke positioning is determined by one or more of the factors in the group comprised of fuel type, burner type, desired burner temperature, heat detected at one or more burners, flame detection at one or more burners, the passage of a predetermined period of time after choke activation, the passage of a predetermined period of time after gas supply initiation, and the passage of a predetermined period of time after ignition.